On May 30, Delilah Cassidy was about to miss her flight at Los Angeles International Airport when “the most amazing thing” happened to her.

She said it all started when she learned about American Airlines’ new policy of passengers having to pay to take carry-on luggage onto planes.

Cassidy said she put all of her belongings into just one bag, but it ended up being too big. So, the airline proceeded to charge her $50 – except they didn’t take cash, which was all she had, having just returned from Europe.

I consolidate my bags into one and they measure it and say it’s just a little too big. They proceed to charge me $50, except they only take credit card, no cash. Since I just got back from Europe all my cards are being declined as Chase doesn’t know I’m back.

That’s when Cassidy was told she would have to miss her flight and head back to the ticket counter to pay there.

“I’m pleading, devastated after a long day of travel,” she said. “Then, this man walks up and says ‘How much is it?’ They tell him $50, and he says ‘I got it.'”

Cassidy said she was “astonished” and insisted the man not worry about it – but to no avail. The man hands over his card, shocking employees with his generosity, then simply told her “to have a great flight and hop on board.”

I’m astonished and tell him it’s fine not to worry and he hands the lady his card as the American Airlines employees stand in silence shocked by this man’s generosity. They swipe the card and he tells me to have a great flight and hop on board.